Home / 18,722.20-28,071.30-8,848.60

Finding the Fourth Proportional to 18,722.20, 28,071.30 and 8,848.60

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Solution

The fourth proportional to 18,722.20, 28,071.30 and 8,848.60 is: 13,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.20 : 28,071.30 = 8,848.60 : x
  2. Step 2: Convert to fraction form
    18,722.20/28,071.30 = 8,848.60/x
  3. Step 3: Cross multiply
    18,722.20x = 28,071.30 × 8,848.60
  4. Step 4: Simplify right side
    18,722.20x = 248,391,705.18
  5. Step 5: Solve for x
    x = 248,391,705.18/18,722.20
  6. Step 6: Final answer
    x = 13,267.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.